How much is 100 gig Telkom data? Telkom LTE Wifi Data 100GB for R399. Telkom is celebrating the tenth birthday of its mobile operations through a range of data specials and smartphone bundles. One of the deals is a 100GB Night Surfer data bundle for R149, which is available to existing and new contract, top-up, and prepaid customers. These once-off data bundles are valid for 31 days from the date of activation and the data can only be used between midnight and 07:00. Another prominent deal, although not new, is Telkom’s 1TB SmartBroadband wireless service for R999 per month on a 24-month contract. The images below provide an overview of Telkom’s mobile data deals which are valid between 4 October and 19 November. LTE Once-off data bundles